1)Good quality,competitive factory price 2)Air-cooled,4 stroke 3)1 Year Warranty 4)Certificate:CE,ISO,EPA... Specifications : Model No.WY3.5GF-3/3.5GF-4WY4GF-3/4GF-4WY6GF-3/6GF-4GeneratorNoise(7meters away)70db72db75dbRated output frequency50hz50hz50hzRated output voltage220v220v220vRated ouput power3.5kw4.0kw6.0kwMax Output Power3.8kw4.5kw6.5kwGasoline EngineEngine Model177F/177FD182F/182FD190F/ ...